All depends on how much updating you do. Big sites like news sites are crawled hourly because there is always something new to crawl. Where small sites that dont update a lot are crawled often because it is a waste of time really since they already have the information indexed. So to get crawled a lot, keep updating your content.
Most of my pages are cached, which straight away tells me there last crawl date, without logging onto webmaster tools, however for a more detailed report you should refer to there. I don't get crawled much sadly need to build those incoming links..